Is there a convention?

It was widely known that the seven suns hotel was one of the best in the Sun star empire. It often hosted diplomats, royalty, celebrities and the like, so seeing one of their kind in the hotel was not unusual. What became unusual on this day was that in a manner of minutes, one after another, important people arrived and checked in, specifically requesting to be given one of the suites on the executive floor nearest to the mecha king's room. 

First was the third princess, then the sixth prince, unexpectedly the emperor showed up as well and all of them came separately and reserved different rooms.